Trolley-wire finder.



i No. 880,655. PATBNTED MAR. 3', 1908.

' F. GUNDORPH. TROLLEY WIRE FINDER.

APPLICATION FILED MAY 29. 1907- INVENTOR FERDINAND GUNDORPH, OFPORTLAND, OREGON.

TROLLEY-WIRE FINDER.

Specification of Letters Patent.

Patented March 3, 1908.

Application filed May 29 1907- Serial No. 376.444:-

To all whom it may concern:

Be it known that I, FERDINAND GUN- DORPH, citizen of the United States,residing at Portland, county of Multnomah and State of Oregon, haveinvented certain new and useful Improvements in Trolley Wire Finders, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to a trolley wire finder, and particularly to afinding arm adapted to be projected above the trolley wheel when thepole is under tension of the controlling cord or rope.

The invention has for an object to provide an improved construction ofrecessed pole head whereby the actuating lever for the finding arm maybe completely inclosed and protected, while this arm is adapted to beprojected through an aperture in the head adjacent to the trolley wheelby the tension upon the rope or cord used for retracting the trolley andplacing it in position.

Other and further objects and advantages of the invention will behereinafter set forth and the novel features thereof defined by theappended claims.

In the drawing :Figure 1 is a side elevation showing the finder armprojected; Fig. 2 is a similar view with the arm retracted; Fig. 3 is adetail section of the trolley head adapted to receive the findingmechanism 3 Fig. 4 is a detail end view of the finder arm shown in Fig.2, and Fig. 5 is a similar view with the arm in the position shown inFig. 1.

Like numerals refer to like parts in the several views of the drawing.

Referring to the drawing, the numeral 7 designates a trolley pole of anydesired character provided at its upper end with a head piece or casing8 which is formed with the recess 9 in its under face, the top 10thereof being closed except for the aperture 11.

a The free end of this head is provided With the opposite bearing lugs 3adapted to receive the pivot of the usual trolley wheel 2 which travelsin contact with the feed wire 1. WVithin the recessed head, the lever 5is pivotally mounted at 12, and the short arm 13 thereof connected withthe usual rope or cord 6 by which the trolley is operated. The long armof the lever 5 is pivotally connected at 14 with the finder arm 4 whichextends upward through the aperture 11 in the top wall 10 of the head. V

In the operation of the invention, when tension is placed upon the ropefor withdrawing the trolley or controlling the same the finder arm isimmediately thrown upward above the trolley Wheel, as shown in Figs. 1and 5, and the trolley may then be swung laterally of the wire untilthis arm engages the wire when, by releasing the cord, the wheel willrise into contact with the wire in proper position thereon. As soon asthe trolley is m contact with the wire and tension is released from thecord the weight of the extended arm of the lever retracts the finder arminto the position shown in Fig. 4 thus removing any projection above thetrolley wheel which would be liable to catch or interfere with the wirein turning a curve or if the trolley should become displaced from the'wire. The structure of the recessed head provides means for inclosingthe finder lever so that it is protected from ice and snow by the closedupper face of the trolley head, and the only projecting part above thisface is the extended end of the finder arm. By this construction thetrolley may be placed upon the wire without leaving the car or withoutthe necessity of seeing the wire as by a proper indication upon the ropethe height of elevation may be determined by which the lateral swing ofthe trolley head will bring the finder arm into contact with the wire.The finder arm is disposed adjacent to the trolley wheel andintermediate of the sides thereof so as to avoid any lateral projectionsfrom the head and to guide the center of the wheel into contact with thewire.

The invention presents a simple, efficient and thoroughly protectedstructure adapted for application to any character of trolley pole.

Having described my invention and set forth its merits, what I claim anddesire to secure by Letters Patent is 1. A device of the class describedcomprising a recessed trolley head having a guiding slot therein, anactuating lever pivotally mounted therein, and a finder arm pivoted tosaid lever and extending upward through said slot.

2. In a device of the class described, a trolley head provided with awheel at its free end, a lever pivotally mounted in said head, a finderarm pivoted to said lever and projected above the head intermediate ofthe opposite sides of said wheel to guide the center thereof intocontact with a Wire, and operating means for said lever extending fromsaid head.

3. In a device of the class described a trolley head provided with anoperating lever pivoted therein having a short operating arm and a longdepending arm, a finder arm extending through said head and pivoted tosaid depending arm, and an operating connection extending from the shortarm of said lever.

4. In a device of the class described, a trolley head comprising acasing having a recess in its under face and an aperture through theupper face thereof, a Wheel pivoted at one 15 end of said recess, anoperating lever pivoted at the opposite end thereof, and a finder armpivoted to said lever and disposed adjacent to said aperture.

In testimony whereof I afiix my signature 20 in presence of tWoWitnesses.

FERDINAND GUNDORPH.

Witnesses:

E. E. VAN ALSTINE, R. A. FRAME.

